Spindle-socket for lasts.



SPINDLE SOCKET FOB, LASTS.

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Patented May 1o, 1904.

PATENT EEICE.

EPHRAIM S. MORTON, OF BRCKTON, MASSACHUSETTS.

SPINDLE-SOCKET FOR LASTS.

SPECIFICATION forming part of Letters Patent No. 759,297, dated May 10,1904.

l Application filed August 20,1903. Serial No. 170,157, (No model.)

To all whom, t may concern: Y

Be it known that I, ErnnAIM S. Mon'roN, oi Brockton, in the county ot'Plymouth and State of Massachusetts, have invented certain new anduseful Improvements in Spindle-Sockets 'for Lasts, of which thefollowing is a speciiication.

This invention relates to metal tubes which are driven into holes.formed for theirreception in the heel portions of wooden lasts, thetube forming a socket for the reception oiE the spindle of the jack onwhich the last is held.

rlhe invention has for its object, iirst, to provide a socket of thischaracter which shall be firmly engaged with the Wooden body of the lastby the operation oi driving the socket into the hole bored into thelast, and, secondly, to provide the socket with means for preventing itJfrom indenting the Wood at the bottom o'l said hole when subjected topressure tending to drive the socket into the last more deeply than thedepth ot' the hole Will permit.

rlfhe invention consists in the improvements which I will now proceed todescribe and claim.

Oi' the accompanying drawings, 'forming a part of this specification,Figure l represents a perspective view of a socket embodying' myinvention. Fig. 2 represents a side elevation of the same. Fig. 3represents a section on line 3 3 oi' Fig. 2. Fig. l represents aperspective view of the end piece or head secured to the inner end ofthe socket. Fig. 5 represents a sectional view of a portion of a lastprovided with my improved socket.

The same reference characters indicate the same parts in all theiigures.

projectoutside ot' the periphery oi' the tube,

as shown in Figs. 2 and 3, and are inclined at their end portions, sothat they join the end portions oi' the tube without the 'formation ot'abrupt shoulders. lt will be seen that the described constructionenables the socket to be driven readily into a circular hole bored inthe heel portion of a last, the ridges a indenting the wall of the holeand securely engaging the socket with the last, so that there is noliability of the loosening of the socket by the shrinkage of the wood ofthe last. The acute-angled ridges a a, separated from each other by aV-shaped space', are adapted to be driven into the Wood of the last withthe minimum of resistance, and when \driven in they lirmly secure thesocket in place.

Z) represents an end plate or head which is formed to enter the hole inthe last and to cover the inner end oi' the socket. Said head may besecured to the socket in any suitable way, the said head bearing on thebottom of the hole formed in the last and preventing the inner end ofthe tube from iiulenting and sinking' into the last at the bottom of thehole under the pressure that may be exerted upon it during variousoperations that are conducted while the shoe is on the last, suchoperations ot'ten involving heavy pressure on the last, tending to forcethe uncovered. end of a tubular socket into the last. This is preventedby the head t. The head may de secured to the socket by means oi earsstruck up from Ithe body of the head, as shown in Fig. il, said earsbearing on the innersurt'ace of the socket With suilicient .friction tohold the head in place. It will be understood that owing to the tubularportion and the head being formed as separate pieces the iirst may bemade ot' relatively thin sheet metal for the reason that no particularstrain comes thereupon in use, While the head or disk or plate employedat the bottom oi' the socket, where the heaviest pressure or strain isexerted in use, may be of relatively thick or strong metal. I amtherefore able to produce an economical spindle socket or bushing, forthe reason that the tubular portion may be produced Without Waste from asheet ol relatively low-priced metal by an operation that is lessexpensive than spinning, while the rigid head of possibly thicker andmore expensive material may be cut from a sheet with Very little waste.

I claiml. A spindlesocket or bushingcomposed of a metal piece bent toabut two edges of the sheet together and form a tube, portions of saidpiece being bent outwardly at its edges to form parallel,sharp-angledlongitudinal projections or ridges adapted to indent the wall of acircular hole formed in a wooden last for the reception of the socket,said ridges being separated by a V-shaped space.

2. A spindle socket or bushing formed of a flat piece of sheet or platemetal bent to abut 'tially the same as that of the tube, so that it canenter the hole bored in the last for the reception of the socket.

In testimony whereof I have aliXed my signature in presence of twowitnesses.

EPHRAIM S. MORTON.

l/Vitnesses C. F. BROWN, E. BATCHELDER.

